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Flight Reliability

F9 1781 · Frontier Airlines

Philadelphia → Sarasota (PHL–SRQ)

68
Usually Fine
WanderNerd Reliability Score
83%
Arrive within 15 minutes
3 min
Average arrival delay
5.7%
Cancelled
15 min early
Median arrival delay

Based on 87 historical flights. Data through May 2026.

What the data says

The 3–6 PM departure wins.

F9 1781 departing between 3–6 PM arrived on time 89% of the time, versus 80% between 9 AM–12 PM.

Sunday scaries are real for this one.

F9 1781 arrived on time 93% of the time on Mondays and just 75% on Sundays. That gap is worth planning around.

Better than the Frontier Airlines network average.

F9 1781 arrived on time 83% of the time, versus 73% across the Frontier Airlines network.

The breakdown

On-time by weekday
  • Mon93%(15 flights)
  • Tue—(5 flights)
  • Wed—(2 flights)
  • Thu87%(15 flights)
  • Fri75%(16 flights)
  • Sat85%(13 flights)
  • Sun75%(16 flights)
On-time by departure window
  • 3–6 AM80%(15 flights)
  • 6–9 AM—(8 flights)
  • 9 AM–12 PM80%(20 flights)
  • 12–3 PM—(2 flights)
  • 3–6 PM89%(35 flights)
  • 6–9 PM—(2 flights)
On-time trend by month
100%
Apr

Nov 83% → Apr 100% on time

On-time arrival percentage by month
MonthOn-time percentageFlights
November 202583%12
December 202570%10
February 202692%12
March 202671%21
April 2026100%14
Departures on time
79%
Diverted
0%
Flights flown
82
Months covered
8

Same route, other flights

Keep nerding

Based on 87 historical flights, because apparently we checked. Historical flight data: U.S. Bureau of Transportation Statistics, June 2025 – May 2026. Data through May 2026. How we calculate this.